Science

Thursday, 26 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Graphene
Already in the 19th century, scientists speculated that graphite was composed of layers.
This was only proven through research at the beginning of the 20th century, In 1947, the first theor ...
Silver
Silver has been used in photographic technology.
It is used there to obtain silver halides (primarily silver bromide) used as photosensitive substances.
NASA
The National Aeronautics and Space Administration agency was established on July 29th, 1958 by president Dwight Eisenhower.
It was a response to the launch of a Soviet artificial satellite Sputnik 1 in 1957.
Earth
The highest point on Earth is Mount Everest.
The peak is 8848 m above sea level. However, Mount Everest is not the farthest point from the center ...
lava
Underwater eruption produces pillow lava.
It cools very quickly and splits into ellipsoidal, usually flattened lobes resembling pillows or loa ...
Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
Silver
Later, pure silver coins were produced.
The British pound was initially worth 1 pound of 925 silver jewelry.
Earth
The largest part of the Earth's land is used for animal breeding (30 to 47 percent).
This is followed by wasteland and wilderness (24 to 31 percent), human forests (16 to 27 percent), arable farms (12 to 14 percent), and infrastructure (1 percent).
Tears
Watery eyes may be a signal of dry eye syndrome.
Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.
Nicotine
Nicotine is well absorbed through the skin.
This fact is used in the fight against smoking addiction by using patches soaked in it. There are ca ...